Peter is 35 years old. his son is 10 years old. how many years ago was peter six times older than his son?

Find the balance at the end of 4 years if 1000 is deposited at the rate of

If f(x)=2x-6 and g(x)=3x+9, find (f-g)(x)

Aplane flies around trip to philadelphia it flies to philadelphia at 220 miles per hour and back home with a tailwind at 280 miles per hour if the total trip takes 6.5 hours how many miles does the plane fly round trip